I was cleaning out my large BGE yesterday in preparation for last night's cook and noticed a crack running vertically from the top of the firebox to one of the vent holes, then it proceeded horizontally from the vent hole in both directions across the firebox but not yet to the other vent holes. Is it better to try and seal it for strength with something like JB Weld or a different product or just keep going until its done and try and get a new one from BGE? Another issue I noticed is that the firebox doesn't sit level inside the egg and rocks around hitting the inside of the egg when I am cleaning carbon and rub remnants off the grate from my previous cook! Anyone else have this problem? Thanks in advance for any input on either issue.